<?php

/*

Plugin Name: Future Calendar

Plugin URI: http://anthologyoi.com/wordpress/plugins/future-posts-calendar-plugin.html

Description: A simple plugin that utalizes a modified get_calendar function that shows what dates have a future post scheduled in a calendar format, and makes it easy to change the current timestamp. Temperature Functionality and some tweaks by Flavio Jarabeck (www.InternetDrops.com.br)

Author: Aaron Harun

Version: 1.0

Author URI: http://anthologyoi.com/

*/

/*Uncomment the following line if you want to have the calendar appear on the dashboard.*/

//add_action('activity_box_end', 'get_future_calendar_html');

	if (strpos($_SERVER['PHP_SELF'], 'post')){	

		if($wp_version < 2.5){

			add_action('dbx_post_sidebar', 'get_future_calendar_html',2);

		}else{

			add_action('submitpost_box', 'get_future_calendar_html');

		}

		add_action('admin_head', 'fcal_javascript');

	}

// This gets called at the plugins_loaded action

function widget_fut_posts_init() {

	// Check for the required API functions

	if ( !function_exists('register_sidebar_widget') || !function_exists('register_widget_control') )

		return;

	// This saves options and prints the widget's config form.

	function widget_fut_posts_control() {

		$options = $newoptions = get_option('widget_fut_posts');

		if ( $_POST['fut_posts-submit'] ) {

			$newoptions['title'] = strip_tags(stripslashes($_POST['fut_posts-title']));

		}

		if ( $options != $newoptions ) {

			$options = $newoptions;

			update_option('widget_fut_posts', $options);

		}

	?>

				<div style="text-align:right">

				<label for="fut_posts-title" style="line-height:35px;display:block;"><?php _e('Widget title:', 'widgets'); ?> <input type="text" id="fut_posts-title" name="fut_posts-title" value="<?php echo wp_specialchars($options['title'], true); ?>" /></label>

				<input type="hidden" name="fut_posts-submit" id="fut_posts-submit" value="1" />

				</div>

	<?php

	}

	// This prints the widget

	function widget_fut_posts($args) {

		extract($args);

		$defaults = array('title' => 'Future Posts');

		$options = (array) get_option('widget_fut_posts');

		foreach ( $defaults as $key => $value )

			if ( !isset($options[$key]) )

				$options[$key] = $defaults[$key];

			echo $before_widget . $before_title . $title . $after_title;

			fcal_get_future_posts(0);

			echo $after_widget;

	}

	register_sidebar_widget('Future Posts', 'widget_fut_posts');

	register_widget_control('Future Posts', 'widget_fut_posts_control');

}

// Delay plugin execution to ensure Dynamic Sidebar has a chance to load first

add_action('widgets_init', 'widget_fut_posts_init');

function future_post_sidebar(){

	$title = __('Future Post','fcal');

	echo '<div>' . '<h3>' . $title . '</h3>';

	fcal_get_future_posts();

	echo '</div>';

}

function fcal_javascript(){

	echo '

	<script type="text/javascript">

		function fcal_set_date(day,month,year){

				if(day > 0 && month <= 12 && month >= 0 && year > 0){

				document.getElementById("jj").value = day;

				document.getElementById("aa").value = year;

				document.getElementsByName("mm")[0].selectedIndex = month;

				}

		}

	</script>

	';

}

function get_future_calendar_html(){

global $wp_version;

	if($wp_version < 2.5){

		echo '<fieldset id="future_cal" class="dbx-box side-info">';

		echo '<h3 class="dbx-handle">'.__('Future Post Dates','fcal').'</h3>';

		echo '<div class="dbx-content">';

			fcal_get_future_posts();

		echo '</div></fieldset>';

	}else{

		echo '<div class="inside">';

		echo '<p><strong>'.__('Future Post Dates','fcal').'</strong></p>';

			fcal_get_future_posts();

		echo '</div>';

	}

}

function fcal_get_future_posts($onclick = 1){

global $wpdb, $wp_locale;

	$thisyear = gmdate('Y', current_time('timestamp'));

	$thismonth = gmdate('m', current_time('timestamp'));

	// Quick check. If we have no posts at all, abort!

	if ( !$posts ) {

		$gotsome = $wpdb->get_var("SELECT ID from $wpdb->posts WHERE post_type = 'post' AND post_status = 'future' ORDER BY post_date DESC LIMIT 1");

		if ( !$gotsome ){

			get_future_calendar($thismonth,$thisyear,$onclick);

			return;

		}

	}

	get_future_calendar($thismonth,$thisyear,$onclick);

	//Technically thismonth is really nextmonth, but no reason to be technical about it

	//But if thismonth is 12 then we need to reset it, and add a year otherwise we will be checking

	// out the 13th month of this year.

	if($thismonth == 12){

		$thismonth = 0;

		$thisyear +=1;

	}

	// Get months this year and next with at least one post

	$future = $wpdb->get_results("SELECT

		DISTINCT MONTH(post_date) AS month, YEAR(post_date) AS year

		FROM $wpdb->posts

		WHERE post_date >'$thisyear-".($thismonth+1)."-01'

		AND post_type = 'post' AND post_status = 'future'

		ORDER	BY post_date ASC");

	foreach($future as $now){

		get_future_calendar($now->month,$now->year);

	}

}

// Calendar Output...

function get_future_calendar( $thismonth ='', $thisyear='', $onclick=1, $initial=true ) {

	global $wpdb, $timedifference, $wp_locale;

	$unixmonth = mktime(0, 0 , 0, $thismonth, 1, $thisyear);

	// week_begins = 0 stands for Sunday

	$week_begins = intval(get_option('start_of_week'));

	$add_hours = intval(get_option('gmt_offset'));

	$add_minutes = intval(60 * (get_option('gmt_offset') - $add_hours));

	echo '<table class="wp-calendar">

	<caption><em>' . $wp_locale->get_month($thismonth) . ' ' . $thisyear . '</em></caption>

	<thead>

	<tr>';

	$myweek = array();

	for ( $wdcount=0; $wdcount<=6; $wdcount++ ) {

		$myweek[] = $wp_locale->get_weekday(($wdcount+$week_begins)%7);

	}

	foreach ( $myweek as $wd ) {

		$day_name = (true == $initial) ? $wp_locale->get_weekday_initial($wd) : $wp_locale->get_weekday_abbrev($wd);

		echo "\n\t\t<th abbr=\"$wd\" scope=\"col\" title=\"$wd\">$day_name</th>";

	}

	echo '

	</tr>

	</thead>

	<tbody>

	<tr>';

	// Get days with posts

	$dayswithposts = $wpdb->get_results("SELECT DISTINCT DAYOFMONTH(post_date)

		FROM $wpdb->posts WHERE MONTH(post_date) = '$thismonth'

		AND YEAR(post_date) = '$thisyear'

		AND post_type = 'post' AND post_status = 'future'

		AND post_date > '" . current_time('mysql') . '\'', ARRAY_N);

	if ( $dayswithposts ) {

		foreach ( $dayswithposts as $daywith ) {

			$daywithpost[] = $daywith[0];

		}

	} else {

		$daywithpost = array();

	}

	if ( strstr($_SERVER['HTTP_USER_AGENT'], 'MSIE') || strstr(strtolower($_SERVER['HTTP_USER_AGENT']), 'camino') || strstr(strtolower($_SERVER['HTTP_USER_AGENT']), 'safari') )

		$ak_title_separator = "\n";

	else

		$ak_title_separator = ', ';

	$ak_titles_for_day = array();

    //sets the Density Thermometer

	$ak_posts_for_day = array();

	$ak_post_titles = $wpdb->get_results("SELECT post_title, DAYOFMONTH(post_date) as dom "

		."FROM $wpdb->posts "

		."WHERE YEAR(post_date) = '$thisyear' "

		."AND MONTH(post_date) = '$thismonth' "

		."AND post_date > '".current_time('mysql')."' "

		."AND post_type = 'post' AND post_status = 'future'"

	);

	if ( $ak_post_titles ) {

		foreach ( $ak_post_titles as $ak_post_title ) {

				if ( empty($ak_titles_for_day['day_'.$ak_post_title->dom]) )

					$ak_titles_for_day['day_'.$ak_post_title->dom] = '';

				if ( empty($ak_titles_for_day["$ak_post_title->dom"]) ) // first one

					$ak_titles_for_day["$ak_post_title->dom"] = str_replace('"', '"', wptexturize($ak_post_title->post_title));

				else

					$ak_titles_for_day["$ak_post_title->dom"] .= $ak_title_separator . str_replace('"', '"', wptexturize($ak_post_title->post_title));

                $ak_posts_for_day["$ak_post_title->dom"] +=1;

		}

	}

	// See how much we should pad in the beginning

	$pad = calendar_week_mod(date('w', $unixmonth)-$week_begins);

	if ( 0 != $pad ) { echo "\n\t\t".'<td colspan="'.$pad.'" class="pad">&nbsp;</td>'; }

	    //Determines the Density Thermometer colors

	    $thermo = Array( "#BDFFBE", "#7AFFDE", "#2FEEFF", "#108BFF", "#0E72FF" );

	$daysinmonth = intval(date('t', $unixmonth));

	for ( $day = 1; $day <= $daysinmonth; ++$day ) {

		if ( isset($newrow) && $newrow )

			echo "\n\t</tr>\n\t<tr>\n\t\t";

		$newrow = false;

		if ( $day == gmdate('j', (time() + (get_option('gmt_offset') * 3600))) && $thismonth == gmdate('m', time()+(get_option('gmt_offset') * 3600)) && $thisyear == gmdate('Y', time()+(get_option('gmt_offset') * 3600)) )

			echo '<td style="font-weight:bold;">';

		else

			echo '<td>';

		if($onclick == 1){

			$onclick1 = 'onclick="fcal_set_date('.$day.','.($thismonth-1).','.$thisyear.')"';

		}

        // any posts on that day?

		if ( in_array($day, $daywithpost) ) {

            //Outputs the Density Thermometer along with the day...

			echo '<span style="background-color:'.($ak_posts_for_day[$day]<=Count($thermo) ? $thermo[$ak_posts_for_day[$day]-1] : $thermo[Count($thermo)-1]).';" title="'.$ak_titles_for_day[$day].' '.$onclick1.' >'.$day.'</span>';

		} else {

			echo '<span '.$onclick1.' >'.$day.'</span>';

        }

		echo '</td>';

		if ( 6 == calendar_week_mod(date('w', mktime(0, 0 , 0, $thismonth, $day, $thisyear))-$week_begins) )

			$newrow = true;

	}

	$pad = 7 - calendar_week_mod(date('w', mktime(0, 0 , 0, $thismonth, $day, $thisyear))-$week_begins);

	if ( $pad != 0 && $pad != 7 )

		echo "\n\t\t".'<td class="pad" colspan="'.$pad.'">&nbsp;</td>';

	echo "\n\t</tr>\n\t</tbody>\n\t</table>";

}

?>